EPCOR Project Backgrounder
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PROJECT BACKGROUNDER Valley Line West LRT Utility Relocations (2019-2022) PROJECT OVERVIEW As part of the Valley Line West LRT project, EPCOR is responsible for relocating all the power, water and drainage utilities to avoid potential conflicts with the future Valley Line West LRT infrastructure. This is the second stage of the Valley Line, an urban- style 27km line that will operate between Mill Woods in southeast Edmonton and Lewis Farms in west Edmonton. EPCOR Valley Line West LRT projects began in 2019 and will continue through the end of 2022. To meet the overall LRT project schedule, the City has requested that EPCOR perform the utility relocations within specific areas along the alignment prior to LRT construction. The work includes the construction of a new drainage tunnel, replacing the existing infrastructure which was constructed in the 1930’s and improving reliability. Power infrastructure will also undergo upgrades to maintain reliability and see some infrastructure converted from aerial to underground in some locations. Water mains will be replaced, improving the standard and reducing the risk of main breaks. OVERALL PROJECT AREA Zone C Zone B Zone D Zone A Zone E Zone F These zone areas are futher defined in subsequent pages of this notice. PROJECT AREA AND NOTIFICATION This project is broken down geographically into six zones which follow the alignment of the relocations from east to west. The relocations may occur in any of these geographic areas along the Valley Line LRT alignment from the start to the end of the project (2020-2022). • Zone A – 101 Street to 109 Street & 105 Avenue to Jasper Avenue • Zone B – 104 Avenue from 109 Street to 121 Street • Zone C – Stony Plain Road from 121 Street to 129 Street • Zone D – Stony Plain Road from Groat Road to 138 Street Open Trench Construction/Excavation • Zone E – Stony Plain Road from 142 Street to 156 Street Open trench construction is a method in which surface area is excavated to install new infrastructure. Most of the work • Zone F – 87 Avenue from 156 Street to 184 Street for this project will include this type of construction, including This notice is being delivered to all residents and businesses the installation of underground power installation, installation in the zones identified above. Going forward, further of new drainage infrastructure and water main relocations. notifications will be mailed to residents and businesses in Open trench construction requires a large trenched area; the immediate zone where the work is occurring. All zone therefore, impacts usually include road and/or sidewalk updates are available at epcor.com/valleyline. closures. Due to the amount of material required, there is often a laydown area that needs to be incorporated onto WORK ACTIVITIES the site, which may cause a large portion of a road and/or sidewalk to be closed, or disrupt a greenspace area which You may see some of the following work activities in your area. may be used for public recreation. Water Main Relocation Water main relocation work is a type of open trench excavation where an existing water main is moved to an alternate location. In addition to the activities associated with open trench excavation, customers affected by water main relocations may require a temporary water connection supplied by EPCOR while work is ongoing. Directional Drilling Directional drilling will be used to install new underground electrical infrastructure. This method is used in an effort to minimize the amount of ground disturbance to an area or for crossing large roads, bodies of water, and where open-cut Micro-Tunneling is not feasible. Holes are drilled and power conduit will be Micro-Tunneling is a method used to construct new sewer pulled through the holes. sewer tunnels. First a large shaft (about 9-12 metres in diameter and 8 metres deep) is built which will facilitate lowering of a Tunnel Boring Machine (TBM) into the ground. The TBM then grinds through soil and other ground conditions underground along the alignment of the new COVID-19 tunnel. Pipe is then installed behind the micro-tunneling While EPCOR has suspended some in-person machine to create the tunnel. services to protect our teams and customers, critical work continues with additional health The tunneling process occurs underground; however, and safety protocols in place. Timelines for shafts are required at the surface along the alignment of the this work are subject to change based on tunnel. These shafts are placed at engineered start and end developments associated with COVID-19. points (used to retrieve or turn the TBM). Due to the size of Updates will be provided on epcor.com. the shaft locations, impacts usually include road/sidewalk closures. A large machine used to manage soil will also be on site at some shaft locations. PROJECT IMPACTS • If we need to shut off your water during construction for longer than eight hours, we will provide you with a temporary Please note, further zone notification will be provided before above ground water supply. There will be no consumption work begins and will include details of traffic impacts, charge for water provided through the temporary line. You timelines and schedule when possible. will only pay the monthly basic charge for water supply and any water consumption provided by regular metering Traffic service. • Depending on the work location, residents and businesses can expect to see activity that is typical to construction, • Planned power outages may be necessary. Outages may including company/contractor vehicles and equipment. be between eight to 12 hours at a time and residents will be notified 10 days prior to a scheduled outage. • Road/lane and sidewalk closures should be anticipated. Signage will indicate closures and detours along with Noise parking restrictions. • Work will create typical noise associated with construction. • We will work with the City of Edmonton to relocate bus We will take measures to ensure compliance with the City of stops as needed. Edmonton’s Community Standards Bylaw for Noise Control. • Construction vehicles and tandem dump trucks used for • Work outside the noise bylaw hours may occur. More hauling along roadways in work areas. information will be distributed as if noise will occur outside bylaw hours. Outages • Depending on your location along the route you may Laydown Areas experience a water outage during the course of the • Four laydown areas for material storage are required for planned construction work. If we have to shut off the this project. Material will be transported to and from these water main temporarily during construction, you will areas for the duration of the construction activities. The receive written notice at least 24 hours in advance. Water laydown areas will be established in mid-August and will be service will typically resume within eight hours. used until the project is completed (approximately 2022). Information on these locations can be found on the Zone D map in this notice. ZONE A: 101 STREET TO Power – Open Trench Construction Power underground infrastructure work has already 109 STREET & JASPER AVENUE begun along 102 Avenue and is expected to be completed TO 105 AVENUE by the Fall. Water – Water Main Relocation Water main relocation work has already begun along 107 Street from 102 Avenue to 104 Avenue and is expected to be completed by the Fall. 104 Ave 101 St 107 St 109 St 103 Ave LEGEND Work Area 102 Ave ZONE B: 104 AVENUE FROM Power - Directional Drilling Overhead lines will be buried underground and new electrical 109 STREET TO 121 STREET infrastructure will be installed on 104 Avenue west of 112 Drainage – Micro-Tunneling Street. The work is anticipated to start in the early Fall and be Three shaft locations will be utilized in this area to facilitate completed by late Fall 2020. construction of a new Drainage tunnel. The locations and Water – Fire Hydrant Relocation estimated timelines are: A fire hydrant will be relocated along 104 Avenue at 115 • 104 Avenue west of 109 Street – anticipated to start in late 2021 Street. The work is anticipated to start in October 2020 is expected to take three weeks to complete. • 104 Avenue at 113 Street – anticipated to start in early 2021 • 104 Avenue at 121 Street – anticipated to start in early 2021 104 Ave 109 St LEGEND 113 St 116 St 121 St Work Area Shaft Location Underground Tunneling ZONE C: STONY PLAIN ROAD • Stony Plain Road from 127 Street to 125 Street – anticipated to start in August 2020 FROM 121 STREET TO 129 • Stony Plain Road from 125 Street to 123 Street – STREET anticipated to start in 2021 Drainage – Open Trench Excavation • Stony Plain Road from 123 Street to 121 Street – Drainage will be performing open trench excavations to anticipated to start in 2022 install a new infrastructure. The locations and estimated timelines are: Water – Water Main Relocation Water main relocation work has already begun along Stony • Stony Plain Road from 129 Street to Sylvancroft Lane – Plain Road and along some side streets north and south of anticipated to start in August 2020 Stony Plain Road. Groat Rd Stony Plain Rd 121 St 124 St LEGEND Work Area ZONE D: STONY PLAIN ROAD Water – Water Main Relocation Water main relocation work has already begun along Stony FROM GROAT ROAD TO 138 Plain Road and along some side streets north and south of STREET Stony Plain Road. Some of the water relocations planned north of Stony Plain Road along 104 Ave and in some Drainage – Micro-Tunneling residential areas will be deferred to 2021. The work that Four shaft locations will be utilized in this area to facilitate has already been initiated north of Stony Plain Road will be construction of a new Drainage tunnel.